CN209417111U - A kind of electric energy meter - Google Patents
A kind of electric energy meter Download PDFInfo
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- CN209417111U CN209417111U CN201821785869.1U CN201821785869U CN209417111U CN 209417111 U CN209417111 U CN 209417111U CN 201821785869 U CN201821785869 U CN 201821785869U CN 209417111 U CN209417111 U CN 209417111U
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Abstract
The utility model relates to a kind of electric energy meter, including electric energy meter ontology (1), power transmission end (12) are set in the electric energy meter ontology (1), table body is equipped with accommodating cavity (9)；Carrier module (2), the carrier module (2) are assemblied in the accommodating cavity (9)；Coupling coil (3) are equipped between the power transmission end (12) and carrier module (2), the carrier module (3) obtains energy by coupling coil (3) electromagnetic induction；It is additionally provided with the first infrared transmission module (13), the second infrared receiving module (14) in the electric energy meter ontology (1), the first infrared receiving module (23), the second infrared transmission module (24) for respectively corresponding with the first infrared transmission module (13), the second infrared receiving module (14) and carrying out infrared communication are correspondingly provided in the carrier module (2).The utility model improves the sealing performance of meter system, has good waterproof and dampproof performance.
Description
Technical field
The utility model relates to electric energy meter field more particularly to a kind of electric energy meters.
Background technique
Electric energy meter because compact, precision height, good reliability, it is easy for installation the advantages that, using more next in production and living
It is more universal.
The carrier module that electric energy meter uses at present needs to connect meter with contact pin socket using table to power and communicate, namely
Carrier module is connected using I/O port with meter in the case of this kind, which has multiple, and a portion is for for carrier module
Power supply, another part transmit for realizing the information between meter and carrier module.
This mode haves the defects that more.On the one hand, this mode needs to occupy more I/O port resource, generally
TXD, RXD, STA, SET, RST, EVENTOUT 6；On the other hand, cold and hot to insert by the way of this contact pin and socket grafting
I/O port is easily damaged during pulling out；Except this, this contact pin socket connection type need on meter designed openings, and this makes meter
Leakproofness between carrier module is deteriorated, and causes waterproof moisture-proof effect bad, after Alternate hot and humid, high temperature and humidity test or dislikes
Under bad environment, the insulation performance of meter is reduced, and there are larger security risks, and cause meter antistatic effect weaker.
Therefore, to solve the above problems, it is a kind of with structure improved electric energy meter it is necessory to provide, to overcome existing skill
The defect in art.
Utility model content
In view of the above problems, the purpose of this utility model is to provide one kind can be powered and believe without designing I/O port
The electric energy meter of breath interaction and strong antijamming capability.
To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of electric energy meter, including,
Electric energy meter ontology, the electric energy meter ontology is interior to be arranged power transmission end, and table body is equipped with accommodating cavity；
Carrier module, the carrier module are assemblied in the accommodating cavity；
Coupling coil is equipped between the power transmission end and carrier module, the carrier module passes through the sense of coupling coil electromagnetism
Energy should be obtained；
The first infrared transmission module, the second infrared receiving module, the carrier wave mould are additionally provided in the electric energy meter ontology
It is correspondingly provided with to respectively correspond with the first infrared transmission module, the second infrared receiving module in block and carries out the first infrared of infrared communication
Receiving module, the second infrared transmission module.
Further, the power transmission end includes power conversion module, is separately connected with power conversion module output end
The first control chip and drive module, the control terminal of the output end connection drive module of the first control chip, the drive
The output end connection first coil of dynamic model block simultaneously exports PWM electric power signal to first coil；
The carrier module includes the first reception chip, and described first, which receives chip input terminal, connects the second coil；
The first coil and second coil form the coupling coil, the second coil inductive coupling First Line
The alternating magnetic flux of circle forms energy so that first receives chip operation.
Further, the electric energy meter ontology further include with the first meter MCU chip for connecting of control chip, described first
Infrared transmission module and the second infrared receiving module are connected with the meter MCU chip respectively；
The carrier module further includes the module MCU chip connecting with the first reception chip, first infrared receiving
Block, the second infrared transmission module are connected with the module MCU chip respectively.
Further, the first filter circuit is additionally provided between the drive module output end and first coil.
Further, the second filter circuit is provided between the first reception chip and the second coil.
Further, first filter circuit is formed by the capacitor of multiple parallel connections.
Further, second infrared transmission module includes the of light emitting diode and control light emitting diode on-off
One triode；
Second infrared receiving module includes photodiode and the second triode V1 for being controlled by photodiode.
Further, first triode is positive-negative-positive, and second triode is NPN type.
Compared with the prior art, the advantages of the utility model are: carrier module is wireless as electric power by coupling coil
Transmission channel receives the electric power from electric energy meter ontology, and the confession of progress carrier module after parsing conversion is carried out to received information
Electricity, this kind of electromagnetic induction power supply mode, no setting is required I/O port improve the leakproofness between electric energy meter ontology and carrier module；And
Infrared communication is used between meter ontology and carrier module, further optimizes meter system, is equally designed without I/O port, into one
Step enhances the sealing waterproof moisture-proof effect of meter system, and infrared communication has stronger interference free performance, improves information
Transmission quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model electric energy meter.
Fig. 2 is the functional block diagram of the utility model electric energy meter.
Fig. 3 is the circuit diagram at the power transmission end of the utility model electric energy meter.
Fig. 4 is the circuit diagram at power receiver end in the carrier module of the utility model electric energy meter.
Fig. 5 is the first infrared emission end and the first infrared receiving module circuit theory of the utility model electric energy meter
Figure.
Fig. 6 is the second infrared transmission module and the second infrared receiving module circuit theory of the utility model electric energy meter
Figure.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
It is as shown in Figure 1 the utility model electric energy meter wireless power and communication schematic block diagram, which includes electric energy meter
Ontology 1 and the carrier module 2 wirelessly communicated with electric energy meter ontology 1, the electric energy meter ontology 1 are equipped with accommodating cavity 9, the carrier wave mould
Block 2 is mounted in the accommodating cavity 9.
Referring to fig. 2, power transmission end 12, carrier module 2 and the power transmission end 12 are set in the electric energy meter ontology 1
Between be equipped with coupling coil 3, carrier module 2 obtains capacitation amount by the effect of the electromagnetic induction of coupling coil 3, so that carrier wave mould
Block 2 can work under operating voltage namely the application will be substituted for by the module design that I/O port is powered using electricity in the past
Magnetic induction way carries out wireless charging.
Specific to the present embodiment, together referring to Fig. 3 and Fig. 4, the power transmission end 12 include power conversion module 1210,
The the first control chip 122 and drive module 123 being separately connected with 121 output end of power conversion module, the first control core
The control terminal of the output end connection drive module 123 of piece 122, the output end of drive module 123 connect first coil 31.It is electric herein
Source conversion module 121 is AC/DC module.
Corresponding, the carrier module 2 includes the first reception chip 222, and the described first input terminal for receiving chip 222 connects
The second coil 32 is connect, the first coil 31 and the second coil 32 couple and form the coupling coil 3.Drive module 123 will be electric
Force information is transmitted to first coil 31 in the form of PWM, and the alternating flux of the second coil 32 induction first coil 31 changes and produces
Raw energy.
Specifically, alternating current provides power supply after AC/DC is converted into the first control chip 122 and drive module 123, this
When electric current first coil 31 can be also transmitted to by PWM form, due to the current information in first coil 31 be alternating current, should
Alternating current will form alternating magnetic flux according to electromagnetic induction principle, and the second coil 32 will be generated by coupling first coil 31
Alternating magnetic flux obtain energy, and by first receive chip 222 inside full-bridge rectification module (not shown) will
On the capacitance module 224 for measuring the port RECT for running up to the first reception chip 222, connect when the voltage on the port RECT is higher than first
When receiving the starting voltage of chip 222, first, which receives chip 222, starts to work, and the switch followed by COMM1/2 pin is led to
Letter, when COMM1/2 pin carries out switch motion, the first control chip 122 will test this variation, and by Content of Communication solution
Code comes out, and when the first reception 222 backend load of chip changes, for example load is switched to communication state by not communication state
When, the induction reactance that will lead on the second coil 32 changes, and then according to coil coupling principle, the induction reactance of first coil 31 also can
It changes, the voltage/current amplitude in first coil 31 will accordingly change, voltage/electricity periodically variable in this way
Stream is demodulated by the first control chip 122, is reduced into communication data, control and tune for 1 transmitting terminal of electric energy meter ontology
It is whole.
Since existing electric energy meter ontology 1 sends information to main website (not shown) by carrier module 2, and there are main websites
By carrier module 2 to there are bidirectional informations between the transmission of electric energy meter ontology 1 order namely electric energy meter ontology 1 and carrier module 2
Interaction.In order to realize the purpose, the first infrared transmission module 13, the second infrared receiver are additionally provided in the electric energy meter ontology 1
Module 14 is correspondingly provided in the carrier module 2 and respectively corresponds with the first infrared transmission module 13, the second infrared receiving module 14
Carry out the first infrared receiving module 23, the second infrared transmission module 24 of infrared communication.
Whether information is transferred to carrier module 2 or information via electric energy meter ontology 1 and is transmitted to electric energy by carrier module 2
Table ontology 1 is required to parse to take corresponding operating information, therefore corresponding, the electric energy meter ontology 1 further include with
The meter MCU chip 15 that first control chip 122 connects, first infrared transmission module 13 and the second infrared receiving module 14
It is connected respectively with the meter MCU chip 15；
The carrier module 2 further includes the module MCU chip 25 connecting with the first reception chip 222, and described first is infrared
Receiving module 23, the second infrared transmission module 24 are connected with the module MCU chip 25 respectively.
Simultaneously, it should be mentioned that, in the present embodiment, since meter MCU module 15, module MCU chip 25 are not this
The key protection point of application, and which kind of chip it is specially, and can be selected according to actual needs by those skilled in the art, such as be can be
FPGA is also possible to single-chip microcontroller, and meter MCU module 15 and the first control chip 122, module MCU chip 25 and first receive
It is respectively to be connected by which corresponding ports between chip 222, also belongs to the known technology contents of those skilled in the art, therefore
It no longer enumerates and carefully states herein.
With continued reference to Fig. 2-4, in the present embodiment, power transmission end 12 further includes the first filter circuit 125, drive module
123 current information flows into first coil 31 after the filtering of the first filter circuit 125.Equally, carrier module 2 further includes the second filter
The electric current of wave circuit 225, the outflow of the second coil 32 is conveyed to the first reception chip 222 after the filtering of the second filter circuit 225.It should
First filter circuit 125 is formed by the capacitor of multiple parallel connections.
Referring to figs. 5 and 6, second infrared transmission module 24 includes light emitting diode HL1 and control light-emitting diodes
First triode V2 of pipe HL1 on-off；Second infrared receiving module 14 includes photodiode BL1 and is controlled by photosensitive
The second triode V1 of diode BL1, the first triode V2 are positive-negative-positive, and the second triode V1 is NPN type.
Specifically, the cathode of light emitting diode HL1 is grounded, anode passes through resistance R6 and R7 and the first triode V2 in parallel
Collector connection, the emitter of the first triode V2 connect high level V-IR, base stage connect letter signal input part IR-TXD1, can
To know, the signal of input terminal IR-TXD1 comes from module MCU chip 25 herein.
Second infrared receiving module 14 includes photodiode BL1 and is controlled by photodiode BL1 and be used to export
Second triode V1 of level signal, the second triode V1 uses NPN type here, and the on-off of photodiode BL1 is by luminous two
Pole pipe HL1 control；Specifically, the cathode of photodiode BL1 meets high level V-IR, anode passes through resistance R1 and the second triode
The base stage of V1 connects, and the base stage of the second triode V1 also passes through resistance R4 and is grounded, and the collector of the second triode V1 passes through resistance
R2 is connect with high level V-IR, emitter ground connection；Signal of communication output IR-RXD1 is connect with the collector of the second triode V1,
Similarly, output end IR-RXD1 exports signal to meter MCU chip 15.
When the signal of communication input terminal IR-TXD1 at infrared emission end 23 exports low level, the first triode V2 conducting, hair
Optical diode HL1 conducting shines, and the photodiode BL1 at infrared receiver end is connected by HL1 illumination, causes the second triode V1
Conducting, such communication information just can be transmitted to meter MCU chip 15 by output end IR-RXD1, to complete information exchange behaviour
Make.
Other than above-mentioned improvement, other similar improvement are also contained in the improvement threshold of the utility model, herein
It is not repeating.While there has been shown and described that the embodiments of the present invention, it will be appreciated by those skilled in the art that: it is not taking off
These embodiments can be carried out with a variety of variations, modification, replacement and deformation in the case where from the principles of the present invention and objective,
The scope of the utility model is defined by the claims and their equivalents.
Claims (8)
1. a kind of electric energy meter, including,
Electric energy meter ontology (1), the electric energy meter ontology (1) is interior to be arranged power transmission end (12), and table body is equipped with accommodating cavity (9)；
Carrier module (2), the carrier module (2) are assemblied in the accommodating cavity (9)；
It is characterized by:
Coupling coil (3) are equipped between the power transmission end (12) and carrier module (2), the carrier module (2) passes through coupling
Coil (3) electromagnetic induction obtains energy；
The first infrared transmission module (13), the second infrared receiving module (14) are additionally provided in the electric energy meter ontology (1), it is described
It is correspondingly provided in carrier module (2) and respectively corresponds progress with the first infrared transmission module (13), the second infrared receiving module (14)
The first infrared receiving module (23), the second infrared transmission module (24) of infrared communication.
2. electric energy meter according to claim 1, it is characterised in that:
The power transmission end (12) includes power conversion module (121), is separately connected with power conversion module (121) output end
The first control chip (122) and drive module (123), the output end connection drive module of first control chip (122)
(123) control terminal, output end connection first coil (31) of the drive module (123) simultaneously export PWM electric power signal to the
One coil (31)；
The carrier module (2) includes the first reception chip (222), and described first receives chip (222) input terminal connection second
Coil (32)；
The first coil (31) and second coil (32) form the coupling coil (3), the second coil (32) coupling
It closes the alternating magnetic flux of induction first coil (31) and forms energy so that first receives chip (222) work.
3. electric energy meter according to claim 2, it is characterised in that:
The electric energy meter ontology (1) further include with first control chip (122) meter MCU chip (15) for connecting, described first
Infrared transmission module (13) and the second infrared receiving module (14) are connected with the meter MCU chip (15) respectively；
The carrier module (2) further includes receiving the module MCU chip (25) that chip (222) are connect with first, and described first is red
Outer receiving module (23), the second infrared transmission module (24) are connected with the module MCU chip (25) respectively.
4. electric energy meter according to claim 2, it is characterised in that:
The first filter circuit (125) are additionally provided between drive module (123) output end and first coil (31).
5. electric energy meter according to claim 2, it is characterised in that:
The second filter circuit (225) are provided between first reception chip (222) and the second coil (32).
6. electric energy meter according to claim 4, it is characterised in that:
First filter circuit (125) is formed by the capacitor of multiple parallel connections.
7. electric energy meter according to claim 1, it is characterised in that:
Second infrared transmission module (24) includes light emitting diode (HL1) and control light emitting diode (HL1) on-off
First triode (V2)；
Second infrared receiving module (14) includes photodiode (BL1) and is controlled by the of photodiode (BL1)
Two triodes (V1).
8. electric energy meter according to claim 7, it is characterised in that:
First triode (V2) is positive-negative-positive, and second triode (V1) is NPN type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785869.1U CN209417111U (en) | 2018-10-31 | 2018-10-31 | A kind of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785869.1U CN209417111U (en) | 2018-10-31 | 2018-10-31 | A kind of electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN209417111U true CN209417111U (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821785869.1U Active CN209417111U (en) | 2018-10-31 | 2018-10-31 | A kind of electric energy meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098550A (en) * | 2021-04-21 | 2021-07-09 | 南方电网数字电网研究院有限公司 | Ammeter and wireless communication module connecting circuit thereof |
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2018
- 2018-10-31 CN CN201821785869.1U patent/CN209417111U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113098550A (en) * | 2021-04-21 | 2021-07-09 | 南方电网数字电网研究院有限公司 | Ammeter and wireless communication module connecting circuit thereof |
| CN113098550B (en) * | 2021-04-21 | 2023-01-20 | 南方电网数字电网研究院有限公司 | Ammeter and wireless communication module connecting circuit thereof |
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